Portable windlass jack



' l 1924 Jan L. N. NULL PORTABLE wINnLAss JAcK Filed Oct. 14 1921 2 Sheets-Sheet 1 3mm LJVa ZZ llllillrllu '|lll. Y

Jan. l, 1924 1,479,672 L. N. NULL PORTABLE wrNDLAss JACK Filed Oct. 14 1921 2 SheatsSheet 2 HI Illllll Illllllllll- Patented Jan. 1, 1924.

UNITED STATI-:s PATENT@ ofi12-Fier..

-'LESTERfN. NULL, 0F OILTON,-OKLAHOMA, ASSIGNOR OF ONE-HALF '129:17 ON 1W. 4SMITH,

on. OILTON,

OKLAHOMA.

. PORTABLE WINDLASS JACK.

' fflppicatibn led"0ctober 14, 1921. Serial 115,507,616.

To all 'whbm'z't may: concern Be it-known that-LfLEsTEnN-.NULma citizen' of the United States,- residing atOilton, in the county ofCreekf and 'State ofOklachema, `have invented certain new and useful Improvements Portable "llVindlassvf I'Jacks; and Ildo herebyldeclare the-following to be a full, clear, and exact description of the"'invention, such as will enable others m skilled in the art to which it appertains to make and use the same.

This invention relates to a portable windlass jack. i The invention aims to provide a genera purpose portable Windlass which may serve for instance, as a fence and Wire stretcher, as a post puller, to pull the ends of belting together for fastening, to lift automobiles in the shop and when stalled, and to handle heavy machinery, which is of novel, im-

proved and simplified construction as will appear from a description thereof hereinafter following which is to be taken in connection with accompanying drawings illustrating one practical embodiment.

In said drawings Figure 1 is a front elevation;

Figure 2 is a side elevation;

Figure 3 is a fragmentary elevation taken from the opposite Side to Figure 2;

Figure 4 is a cross sectional view on the line 4 4 of Figure 1,

Figure 5 is a cross sectional view on the line 5 5 of Figure 1, and

Figure 6 is a vertical sectional view on the line 6`6 of Figure 1.

In reducing the invention to practice, a spool or reel generally designated A is employed for coaction with a rope, cable or other flexible element B. Said spool A has ilanges 7 to retain the cable B and trunnions 8 and 9. Said trunnions 8 and 9 are journaled in suitable openings provided in arm 10 and in bars 11. Said bars 11 are spaced apart and a manually engageable arch 12 extending from arm 10, has a terminal 13 disposed intermediate said bars 11. A bolt 14 removably passes through the arm 10, terminal 13 and bars 11 having a removable sleeve 15 surrounding the same and at one end abutting the innermost bar 11 and at the other end abutting the arm 10 in order to rigidify the frame. A relatively short removable bolt 16 passes through terminal 13 and bars 11 below said bolt 14.

'17 by meansofv a spring21seci1fred 'tothe lever 18 and to the pawl'19. "Ai-washer 22 may be interposed between therat'chetvwheel V17 and arm 10 anda removablenut'may be screw threaded 1on the terininallend of `Ptru-nnion' 8 ytoprevent displacementof the lever 18. A guard 24 is provided to assist in mounting the pawl 19 and the pivot 20, which is in the form of a removable bolt may also pass therethrough. The lower end of the guard 24 may be riveted or otherwise secured at 25 to lever 18.

Ratchet Wheel 9 is disposed intermediate the bars 11 and a pawl 26 is also disposed intermediate said bars 11, being pivoted as by means of a bolt 27 passing through bars 11 and being urged towards and normally maintained in engagement with the ratchet wheel 18 by means of a coil spring 28 secured to one of the bars 11, and to the pawl 26.

Dogs 29 and 30 are pivoted at 31 and 32, respectively, to the pawls 19 and 26. These dogs have offset ends 33 and 34.

In operation, the frame as at the arm 10 and bars 11 or arch 12, is adapted to be anchored by means of a chain or any suitable mechanism. The cable B is then appropriately applied to the article to be lifted or pulled and thereupon lever 18 is actuated so that the pawl 19 will move into engagement with the ratchet wheel 17 and cause rotation of the spool or reel A in order to wind the cable thereon. At the end of a power-imparting stroke of lever 18, it may be depressed, the pawl 19 idling back over the teeth of the ratchet wheel, and thereafter again moved to impart power or rotation to the spool A. As the spool A turns, the ratchet wheel 18 turns therewith and as it advances, the pawl 26 automatically slips to engage the shoulders of the teeth thereof in order to prevent retrograde movement when the lever 18 is returned to position for ower-im arting manipulation.

en it is desired that the spool A should be capable of free movement, the pawls 19 may be maintained out of engagement therewith by manuallymoving them away from the f ijatchet xfyhleelsf'l and 178 and then shifting the dogs 29 and 30 so that their lugs 33 and 34 may abut the adjacent side of the AV'lever 18 andbe of the bars 11, and held in such position by means of the springs 21 and 28 respectively. It is to'be understood that but one form of the invention has been illustrated in view of which fact, changes may be resorted to within its spirit and Scope. Y

I claim as my invention VA windlass jack having aireel provided uwith rtrunnions'7 a U-shaped frame having an armin which one o said trunnions is jour- "naledj aratfcliet wheel rigid on the last men tioned trunnion, Aa lever yournaled on the last mentioned trunnion, a pawl on said lever i engageable with 'said ratchet Wheel, a .fastening member on the last mentioned trunnion beyond said lever, the arch of the frame eX- tending from said arm and terminatin in an arm shorter than and `at a distanoe m said arm, a bolt spannin said arm intermediate Said reel and arch an passing through the Second mentioned arm, bars'through which said bolt passes engageable With opposite sides of the second arm and projecting beyond the end of the same, means on said bolt in abutment with the innermost bar, a ratchet Wheel intermediate said bars in line with the Second arm and rigid with the other trunnion7 a fastening intermediate said bolt and ratchet wheel securing the second arm and bars together to supplement the fastening of the bars by said bolt, and a pawl cooperating with the second mentioned ratchet Wheel pivoted to and intermediate said bars adjacent their distal ends. H

In testimony whereof I affix my signature in presence of two Witnesses.

LESTER N. NULL.

Witnesses:

R. E. CAMPBEIL, FLORENCE SU'rroN. 

